Evidence map›Paper›PMID 30172260›Full record

ArticleMicrobial cell factories2018

Engineering the oleaginous yeast Yarrowia lipolytica to produce the aroma compound β-ionone.

Jeffrey J Czajka, Justin A Nathenson, Veronica T Benites, Edward E K Baidoo, Qianshun Cheng, Yechun Wang, Yinjie J Tang

Open access · goldAbstract read
In one paragraph

Article in Microbial cell factories, 2018. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 33 papers.

0numbers the graph read from it
0cells of the map it votes in
33citing papers in PubMed
4.2field-weighted citation impact, top 5% of its field
1 · What the graph read from it

What it found

Each row is one number read from the abstract, on the scale the paper reported it, with its interval. Left of the dashed line favours the treatment, right favours the comparator. Under each row is the sentence it came from. New to these charts? A ten-minute tutorial.

The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.

2 · The registry

The trial behind it

Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.

Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.

3 · Its place in the literature

Who cites it

33 citing papers in PubMed, 107 citations in OpenAlex.

  1. Article
  2. Review
  3. Review
  4. Metabolic engineering ofFrontiers in microbiology · 2026
    Article
  5. Article
  6. Article
  7. Introducing CCD1 into isolatedFrontiers in bioengineering and biotechnology · 2024
    Article
  8. Review
  9. Article
  10. Article
  11. Article
  12. Review
  13. Article
  14. Article
  15. Article
  16. Engineering ofMetabolic engineering communications · 2022
    Review
  17. Article
  18. Article
  19. A Novel Cre/International journal of molecular sciences · 2021
    Article
  20. Review
4 · The record

Corrections and comments

PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.

5 · Who and what money

Authors and funding

7 authors at 4 institutions in 2 countries.

Jeffrey J CzajkaDepartment of Energy, Environmental and Chemical Engineering, Washington University, St. Louis, MO, 63130, USA.
Justin A NathensonDepartment of Energy, Environmental and Chemical Engineering, Washington University, St. Louis, MO, 63130, USA.
Veronica T BenitesLawrence Berkeley National Laboratory, Berkeley, CA, 94720, USA.
Edward E K BaidooLawrence Berkeley National Laboratory, Berkeley, CA, 94720, USA.
Qianshun ChengDepartment of Mathematics, Statistics and Computer Science, University of Illinois at Chicago, Chicago, IL, 60607, USA.
Yechun WangArch Innotek, LLC, 4320 Forest Park Ave, St. Louis, MO, 63108, USA. ywang@arch-innotek.com.
Yinjie J TangDepartment of Energy, Environmental and Chemical Engineering, Washington University, St. Louis, MO, 63130, USA. yinjie.tang@wustl.edu.ORCID http://orcid.org/0000-0002-5112-0649
Washington University in St. Louis · USLawrence Berkeley National Laboratory · USKorea Innotech (South Korea) · KRMonsanto (United States) · US

Funding

Directorate for Biological Sciences MCB1616619Directorate for Engineering IIP1722313
6 · The paper itself

Abstract

backgroundβ-Ionone is a fragrant terpenoid that generates a pleasant floral scent and is used in diverse applications as a cosmetic and flavoring ingredient. A growing consumer desire for natural products has increased the market demand for natural β-ionone. To date, chemical extraction from plants remains the main approach for commercial natural β-ionone production. Unfortunately, changing climate and geopolitical issues can cause instability in the β-ionone supply chain. Microbial fermentation using generally recognized as safe (GRAS) yeast offers an alternative method for producing natural β-ionone. Yarrowia lipolytica is an attractive host due to its oleaginous nature, established genetic tools, and large intercellular pool size of acetyl-CoA (the terpenoid backbone precursor).

resultsA push-pull strategy via genome engineering was applied to a Y. lipolytica PO1f derived strain. Heterologous and native genes in the mevalonate pathway were overexpressed to push production to the terpenoid backbone geranylgeranyl pyrophosphate, while the carB and biofunction carRP genes from Mucor circinelloides were introduced to pull flux towards β-carotene (i.e., ionone precursor). Medium tests combined with machine learning based data analysis and

conclusionsWe engineered a GRAS Y. lipolytica platform for sustainable and economical production of the natural aroma β-ionone. Although β-carotene could be produced at high titers by Y. lipolytica, the synthesis of β-ionone was relatively poor, possibly due to low CCD1 activity and non-specific CCD1 cleavage of β-carotene. In addition, both β-carotene and β-ionone strains showed decreased performances after successive sub-cultures. For industrial application, β-ionone fermentation efforts should focus on both CCD enzyme engineering and strain stability improvement.

Indexed as

Metabolic EngineeringNorisoprenoidsYarrowiabeta-iononeNorisoprenoids13C labelingAcetyl-CoAFed-batch fermentationMachine learningStrain stabilityTerpenoidβ-carotene

Identifiers

PMID30172260
PMCPMC6119263
OpenAlexW2889216082

What OpenQuestion holds

Textmetadata
LicenceCC BY
Read underepoch 390

Registered trials

None linked

Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.